Reset Direct Formatting in Topic Notes to Default Formatting

On Windows 7 Mindmanager 15, I have a built a map with topic notes. In some cases, the notes contain text that I copied and pasted from a variety of sources so the font & size is not consistent. When I use Notes Formatter at the root topic, this text font and size is not affected, although all other text font and size in notes is globally changed. Through experimentation I have confirmed the Notes Formatter changes do not apply to any text whose font & size that is manually changed. How can I reset all the such text, preferably as the root topic level.